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20121120
20121120
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KRON (MyNetworkTV) 1
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KRON
Nov 19, 2012 11:00pm PST
to use to replace the one that broke last august causing the fire. as kron 4's dan kerman reports, investigators are not convinced they are using the best available technology. >> reporter: preliminary findings suggest corrosion caused the pipe to rupture. they asked for a permit to replace the pipe with something better. 9% chromium steel alloy. but they aren't sure that is what is best. >> this alloy is 9 chrome, can be susceptible to what is called sulfaidation corrosion. >> the same type of pipe was involved in a fire in washington state. >> that doesn't prove it is not a good choice but it prompts more question about corrosion. >> reporter: they want chevron to explain why they are not using stainless steel with 18% chromium. >> hard to predict how fast corrosion occurs. that is why it is so important to use the safest possible materials in the piping. they have issued chevron a subpoena. they have till december 7 to answer the questions, specifically, about their decision making process, why they chose one type of pipe instead of the other. dan kerman, kron 4 news. >>> so f
Search Results 0 to 0 of about 1